Every app project starts with an idea ideally coming from a real problem that needs to be solved. Apps with love has designed and developed more than 100 Apps since its founding in 2010 and is happy to share the experiences and learnings about it during the World Interaction Day 2017 in Zürich #WIAD17. How does the process look like from the first idea to the final screensdesigns of an digital product like an app? What tools, concepts and methods can be used to figure out how the functional and visual design should look like? Some Real Case Examples are included.